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【单选题】
Each instruction is processed sequentially, and several instructions are at varying stages of execution in the processor at any given time, this is called instruction____.A.
executing
B.
sequencing
C.
pipelining
D.
producing
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【单选题】The phrase “lost your taste” (paragraph 1) most probably means ________.
A.
lost the sense of taste
B.
take no interest
C.
want to give up
D.
be disgusted with
【单选题】The phrase “lost your taste” (paragraph 1) most probably means ________.
A.
lost the sense of taste
B.
want to give up
C.
take no interest
D.
be disgusted with
【简答题】紫红色的[Ti(H2O)6]3+在可见区的吸收光谱如教材中例题3—1的图所示，其最大吸收峰位置对应于20．3×103cm-1，并在该最大吸收峰位置的右边(低频方向)出现一个肩峰，试用晶体场理论解释上述肩峰的由来。
【单选题】—I _____ a set of keys. Do you see them? —Sorry, but you can go to the lost and found. [ ]
A.
lost
B.
found
C.
have
【简答题】计算下列溶液的 pH 值: (1) 0.1mol·L -1 的 NH 4 NO 3 溶液; (2) 在 10.0mL 0.1mol·L -1 的 HAc 溶液中,加入 5.0mL 0.lmol·L -1 的 NaOH ,溶液的 pH 值为多少? [ 已知 NH 3 的 K b Θ = 1.77×10 - 5 , HAc 的 K a Θ = 1.76×10 - 5 ]
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